Troubleshooting Primus IQ Brake Controller Showing SH Code With Trailer Disconnected
Published 12/22/2015
Question:
My unit has Sh error all the time even with the wire to the trailer not connected
asked by: Matt
Expert Reply:
The SH display you are getting on your Primus Brake Controller, part # TK90160 is typically caused by a short in the wiring.
Per my contact at Tekonsha they said that this problem can often be caused by some test lights if you are using test lights. To troubleshoot the problem, start by inspecting the trailer and vehicle side connectors for corrosion build up and clean or replace parts as needed to see if that takes care of the issue. I have attached a helpful article that explains how to troubleshoot brake controller installations.
Product Page this Question was Asked From
Tekonsha Primus IQ Trailer Brake Controller - Up to 3 Axles - Proportional
- Trailer Brake Controller
- Proportional Controller
- Electric
- Splice-In
- Under-Dash Box
- Under-Dash
- Up to 3 Axles
- LED Display
- Single Trailer Only
- Tekonsha
more information >
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